United University

Physics Grade 9. Light phenomena. Collection 1

Course Difficulty Icon Intermediate
Course Type Icon Course
Course Duration Icon 19 hours

Embark on an enlightening journey through the fascinating world of light phenomena! Our "Physics Grade 9. Light phenomena. Collection 1" course offers a dynamic learning experience that introduces students to the fundamental concepts of optics. Through interactive lessons, quizzes, and engaging activities, students will explore various aspects of light, including its behavior, properties, and applications.

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Embark on an enlightening journey through the fascinating world of light phenomena! Our "Physics Grade 9. Light phenomena. Collection 1" course offers a dynamic learning experience that introduces students to the fundamental concepts of optics. Through interactive lessons, quizzes, and engaging activities, students will explore various aspects of light, including its behavior, properties, and applications.

Why choose our course:

  • Interactive quizzes and tests: Test your knowledge and reinforce learning with engaging and challenging quizzes.
  • Expertly crafted content: Developed by experienced educators to ensure high-quality and effective learning.
  • Real-life applications: Learn how optical principles apply to real-world scenarios and various fields of study.

Course Module

Module 1: Light phenomena.

  • Lesson 9: Light phenomena. Sources and receivers of light. Speed of light propagation.
  • Lesson 10: Light ray and light beam. Law of rectilinear propagation of light. Solar and lunar eclipses.
  • Lesson 11: Reflection of light. Laws of reflection. Plane mirror.
  • Lesson 12: Refraction of light at the boundary between two media. Laws of refraction.
  • Laboratory Work No. 4: Investigation of light refraction.
  • Lesson 13: Dispersion of light. Spectral composition of natural light. Colors.
  • Lesson 14: Lenses. Optical power of a lens.
  • Lesson 15: Image formation by lenses. Some optical devices. Thin lens formula.
  • Laboratory Work No. 5: Determination of the focal length and optical power of a thin lens.
  • Lesson 16: The eye as an optical system. Vision and sight. Glasses. Visual impairments and their correction.
  • Summary of Section 2: Light phenomena.
  • Tasks for self-checking for Section II "Light phenomena".
  • New light sources and receivers.

Expected Learning Outcomes

  • Understand the concepts of light ray, point light source, and thin lens.
  • Formulate definitions for physical quantities such as focal length, optical power of a lens, and refractive index.
  • Apply the laws of rectilinear propagation, reflection, and refraction of light, as well as the thin lens formula, in solving various problems and conducting laboratory experiments.
  • Explain the causes of solar and lunar eclipses.
  • Describe the principles of operation of simple optical devices.
  • Identify visual impairments and understand methods for their correction and prevention.
  • Recognize the significance of light in daily life and its applications in various technologies.

This interactive course combines foundational physics knowledge with practical experimentation and quizzes. Students will gain insights into light phenomena, enhancing their understanding of the physical world and developing critical thinking skills. Engage in this course to explore the captivating aspects of optics and their applications in our everyday lives.

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